CN103517394B - Scheduling user data method and apparatus - Google Patents
Scheduling user data method and apparatus Download PDFInfo
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- CN103517394B CN103517394B CN201210222931.7A CN201210222931A CN103517394B CN 103517394 B CN103517394 B CN 103517394B CN 201210222931 A CN201210222931 A CN 201210222931A CN 103517394 B CN103517394 B CN 103517394B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/12—Wireless traffic scheduling
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/36—TPC using constraints in the total amount of available transmission power with a discrete range or set of values, e.g. step size, ramping or offsets
- H04W52/367—Power values between minimum and maximum limits, e.g. dynamic range
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/30—TPC using constraints in the total amount of available transmission power
- H04W52/34—TPC management, i.e. sharing limited amount of power among users or channels or data types, e.g. cell loading
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W72/00—Local resource management
- H04W72/50—Allocation or scheduling criteria for wireless resources
- H04W72/54—Allocation or scheduling criteria for wireless resources based on quality criteria
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
- H04W52/04—TPC
- H04W52/18—TPC being performed according to specific parameters
- H04W52/24—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters
- H04W52/241—TPC being performed according to specific parameters using SIR [Signal to Interference Ratio] or other wireless path parameters taking into account channel quality metrics, e.g. SIR, SNR, CIR, Eb/lo
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Abstract
Embodiments of the invention provide a kind of scheduling user data method and apparatus, including：Obtain the power limit mode that power limit is carried out to the user data of user；Obtain the actual schedule weights that user after power limit is carried out according to the power limit mode；The user data of user is transmitted on resource block according to the actual schedule weights of the user.This method combines different power limit modes and dispatching criterion, updates scheduling weights according to power limit mode so that scheduling result more meets channel status, improves systematic function.
Description
Technical field
The present embodiments relate to communication technical field, more particularly to a kind of scheduling user data method and apparatus.
Background technology
In the wireless communication systems such as existing Long Term Evolution (Long Term Evolution, LTE), multiple-input, multiple-output
(Multiple Input Multiple Output, MIMO) technology is widely adopted.It is multiple in multi-user MIMO system
The data of user are carried out precoding as an entirety and sent.Precoding plays elimination user in multi-user MIMO system
The important function of interference, the linear precoding of conventional pre-coding scheme and the major class of nonlinear precoding two.Wherein, for non-thread
Property precoding, have passed through the data power after precoding and has larger lifting, and in a communications system, due to by hardware
Limitation, it usually needs power limit processing is carried out to the data after nonlinear precoding, transmission power need to be limited in certain
In the range of, above-mentioned various functions restricted version can all be impacted to the transmission rate of user data.
In addition, in a wireless communication system, bandwidth is very limited amount of resource, how reasonably to be provided on resource block
Source scheduling is key issue.But inventor has found, in nonlinear precoding system, due to there is power limit processing, change
User data original transmission rate, and be all original transmission speed according to user data in existing resource scheduling scheme
Rate is carried out, accordingly, it is difficult to realize the accurate scheduling to user data.
The content of the invention
The embodiment of the present invention provides a kind of scheduling user data method and apparatus, for realizing the accurate tune to user data
Degree.
One aspect of the present invention provides a kind of scheduling user data method, including：
Obtain the power limit mode that power limit is carried out to the user data of user；
Obtain the actual schedule weights that the user after power limit is carried out according to the power limit mode；
The user data of the user is transmitted in resource block according to the actual schedule weights of the user.
On the other hand the embodiment of the present invention provides a kind of scheduling user data device, including：
First acquisition module, the user data for obtaining to user carries out the power limit mode of power limit；
Second acquisition module, the reality of the user after power limit is carried out for obtaining according to the power limit mode
Dispatch weights；
Transmission process module, for the actual schedule weights according to each user in user of the resource block to the user
Data are transmitted.
A kind of dispatching method for communication system that above-mentioned technical proposal is provided, is entered by obtaining to the user data of each user
The power limit mode of row power limit, and rate loss amount when carrying out according to the power limit mode power limit,
And further instantaneous transmission speed is modified, and obtains actual instantaneous transmission speed, according to the actual instantaneous transmission speed more
The scheduling weights of new each user, and the scheduling for carrying out user data according to the priority of each user causes scheduling result more to meet letter
Road state, improves systematic function.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of scheduling user data method in one embodiment of the invention；
Fig. 2 is the schematic flow sheet of scheduling user data method in another embodiment of the present invention；
Fig. 3 is the schematic diagram of scheduling user data device in yet another embodiment of the invention；
Fig. 4 is the schematic diagram of the second acquisition module structure in yet another embodiment of the invention；
Fig. 5 is the schematic diagram of another structure of the second acquisition module in yet another embodiment of the invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is the schematic flow sheet of scheduling user data method in one embodiment of the invention.As shown in figure 1, a kind of use
User data dispatching method, including：
S101, acquisition carry out the power limit mode of power limit to the user data of user；
Specifically, being to obtain in the embodiment of the present invention when the user data to multiple users is scheduled, in this step
The power limit mode of power limit is carried out to the user data of the plurality of user.
And the power limit mode that above-mentioned acquisition carries out power limit to the user data of each user can be specifically included：
Compare power loss amount of the user data of the user under multiple power limitation mode, select power loss amount
Minimum power limit mode and obtains corresponding power loss amount as the power limit mode of the user data of the user.
Above-mentioned power loss amount is carries out the loss amount that power limit is brought, and the power loss amount can cause signal power and interference
The loss of plus noise power ratio, or transmission rate loss.
S102, acquisition carry out the actual schedule weights of user after power limit according to the power limit mode, in scheduling
During the user data of multiple users, the step be also obtain multiple users actually transfer weights；
In PF dispatching algorithms are carried out, above-mentioned scheduling weights can also be represented with PF weights, be defined as：
Here Ci（t）Refer in instantaneous transmission speed of i-th of user in t, the present embodiment is to obtain to limit according to power
Mode processed carries out speed loss amount Δ C during power limit, and the instantaneous transfer speed for obtaining the user data of each user is corrected according to Δ C
Rate, i.e., actual instantaneous transmission speed；Ti（t）Refer to handling capacity of the user in using t as the time window of ending, i.e. current time window
Intraoral handling capacity, α represents fair exponential factor（Usually 1）, the scheduling weights of each user are it can be seen from above-mentioned formula
According to the handling capacity in the actual instantaneous transmission speed of the user data of each user and each user's actual time window
Obtain the ratio of the two.When a user is carried out continuously data transfer, molecular change is big so that User Priority diminishes.From length
From the point of view of time, intra-cell users, which take identical duration, to carry out data transmission, and is a kind of fair scheduling algorithm.
But technical scheme is not limited to PF dispatching criterions, and this is a kind of, can also have other dispatching criterions, such as
Max carrier to interference is dispatched, and now above-mentioned step 102 includes：
Obtain the signal power and interference plus noise power ratio when power limit is carried out according to the power limit mode；
The actual schedule weights of user are obtained according to above-mentioned signal power and jamming power ratio.
S103, according to the actual schedule weights of the user user data of user is transmitted on resource block.
When carrying out PF scheduling and max carrier to interference scheduling, according to the actual schedule weights of the user in money in the step
The user data of each user is transmitted and can specifically included in source block：
The user data of the high user of the scheduling weights is transmitted using resource block.
In the above embodiment of the present invention, for the user data after nonlinear precoding, according to power limit mode not
Together, by constantly correcting rate loss amount Δ C so that can be with linear PF dispatching method good combinations, it is possible to increase scheduling property
Can, above-mentioned nonlinear precoding can be THP-DPC.
Because being layered to resource block, the power limit mode of the power limit carried out to the user data on each layer respectively has not
Together, it is also desirable to according to different power limit mode computation rate loss amount Δ C.Specifically, above-mentioned S101 can be specially：
If the user data of the user is defined as carrying out modulus behaviour's work in the scheduling process having determined before
Rate limits mode, then obtains the rate loss amount that the user data of user when carrying out power limit is operated according to modulus；If
The user data of the user is defined as carrying out the normalized power limit mode of linear power, then obtains and return according to linear power
One changes the rate loss amount of the user data of user when carrying out power limit；Otherwise, number of users of the selection to the user
According to rate loss amount smaller when being limited according to modulus operation or linear power normalization as the use to the user
User data carries out the power limit mode of power limit, and obtains corresponding rate loss amount.
In the above embodiment of the present invention, wherein obtaining the number of users that user when carrying out power limit is operated according to modulus
According to rate loss amount be specially：
User data modulation methods according to the signal power of the user and interference plus noise power than determining the user
Formula；
Obtained according to the modulation system of the user data and the letter after modulus operation is carried out to the user data of the user
Number power compares loss amount with interference plus noise power；
Signal power after being operated according to the modulus obtains the use of the user with interference plus noise power than loss amount
The rate loss amount of user data；
The acquisition of above-mentioned rate loss amount, is specially to determine to adjust with interference plus noise power ratio according to the signal power of user
Mode processed, the Signal to Interference plus Noise Ratio loss amount obtained after user's modulus of being tabled look-up according to modulation system, updates the letter of user
Number power and interference plus noise power ratio, are determined a kind of according to the signal power of the user after renewal and interference plus noise power ratio
Modulation coding mode, rate loss amount is calculated by modulation coding mode correspondence；
Also, the above-mentioned rate loss that the user data of user when carrying out power limit is normalized according to linear power
Amount is specially：
According to the transmission power for the user data for launching the user, and it is scheduled in the same period for offsetting
The transmission power of the interference of user, obtain the user data of the user is carried out the signal power after linear power normalization with
Interference plus noise power compares loss amount；
Signal power after being normalized according to the linear power, than loss amount, obtains described use with interference plus noise power
The rate loss amount of the user data at family.In the above embodiment of the present invention, following steps are can further include：
The power limit mode that power limit is carried out to the user data of each user is notified to data receiver.So make
Corresponding function restriction mode can be known by obtaining data receiver, and be decoded.
Fig. 2 is the schematic flow sheet of scheduling user data method in another embodiment of the present invention, with reference to Fig. 2, including as follows
The step of：
S201, judge whether modulus flag bit of each user on the resource block determines.If it is determined that, continue step S203,
Otherwise step S202 is continued；
Specifically, when carrying out the scheduling of resource block, modulus flag bit of the user on the resource block must be judged whether
It is determined that.If it is determined that, corresponding power limit mode computation rate loss amount Δ C is selected according to modulus flag bit, if uncertain,
Modulus judgement need to be carried out in step S203.
S202, to each user carry out modulus judgement；
Specifically, being respectively 1 by modulus flag bit to each user for not determining modulus flag bit（Modulus is operated）With ask
Mode designation position is 0（Linear power is normalized）Computation rate loss amount A and λ, compare A and λ size.If A >=λ, it is determined that
Modulus operation is not carried out to the user data, but carries out linear power normalization operation；If A<λ, it is determined that to the user
Data carry out modulus operation.The result judged simultaneously according to modulus sets the modulus flag bit of the user, so as to obtain data receiver
Know the power limit mode of the user data in end.
S203, computation rate loss amount Δ C.
Citing specifically, for a user first layer resource block scheduling because without same time/frequency source block
User's interference of interior front layer, λ=0 is calculated according to the normalized mode of linear power, so user's choosing of resource block first layer
The normalized power limit mode of linear power is selected, and modulus mark position is 0；
The user dispatches in the second layer and afterwards on each layer resource block, can be by prior if its modulus flag bit is 1
The methods such as calculating, emulation or measurement, predefine the rate loss amount under different channels state, different modulating mode, and in advance
It is first stored in emitter.The speed that emitter is tabled look-up according to user's channel status now, modulation system when determining modulus operation
Rate loss amount Δ C=A, wherein channel status can be by signals and interference and noise ratio（Signal to Interference plus
Noise Ratio, SINR）Represent.Following lookup table mode can such as be used：
If the modulus flag bit of user is 1, is tabled look-up according to the SINR of user and obtain its corresponding modulation system, according to
Modulation system table look-up obtain user's modulus after Signal to Interference plus Noise Ratio loss amount, update user signal power and interference
Plus noise power ratio, the signal power after being updated according to user with interference plus noise power than a kind of corresponding modulation coding mode,
Rate loss amount is calculated by modulation coding mode correspondence.
If user's modulus flag bit is 0, rate loss amount λ, Δ C=λ that linear power normalization is brought are calculated.Wherein, λ
Algorithm it is as follows：
Wherein, piFor user i transmission power,The jamming power produced for user j to user i.In THP-DPC volume
Under code mode, the user only dispatched before user i just can produce interference to user i.
S204, according to Δ C calculate PF weights；
Specific computational methods are as follows：By the rate loss amount Δ C drawn, transmitting terminal updates the momentary rate C' of user
(t)=C (t)-Δ C, the calculation formula that embodiment is provided as shown in Figure 1 calculates PF weights of the user on the resource block.
S205, the user for selecting PF maximum weights；
S206, the user data using the high user of resource block transmission PF weights.Data receiver can also be according to modulus
Flag bit knows the power limit mode of user data.
It is that different user selection is different during the resource block scheduling on to different layers in the above embodiment of the present invention
Power limit mode, and calculate corresponding rate loss amount Δ C so that the PF weights finally given are more accurate.
Fig. 3 is the schematic diagram of scheduling user data device in yet another embodiment of the invention, and Fig. 4 is yet another embodiment of the invention
In the first acquisition module structure schematic diagram.
With reference to Fig. 3, yet another embodiment of the invention provides a kind of scheduling user data device 300, and the device can be LTE
Base station, or LTE base station realizes above-mentioned data dispatch, including：
First acquisition module 10, the user data for obtaining to user carries out the power limit mode of power limit,
Second acquisition module 20, the actual tune of user after power limit is carried out for obtaining according to the power limit mode
Spend weights；
Transmission process module 30, for the actual schedule weights according to each user in number of users of the resource block to user
According to being transmitted.User data specifically for transmitting the high user of the scheduling weights using resource block.
During above-mentioned the first acquisition module 10 and the second acquisition module 20 can be the processor or processing unit of base station
Logic unit, transmission process module 30 be base station radiating circuit coupling antenna
Wherein, first acquisition module 10 is specifically for comparing the user data of the user in multiple power limitation side
Power loss amount under formula, selects the minimum power limit mode of power loss amount as the power of the user data of the user
Limitation mode.And when calculating the actual schedule weights of each user according to PF dispatching criterions, above-mentioned second acquisition module 20, according to
Power limit mode obtains rate loss amount（A or λ）, Δ C assignment is given, the actual transfer rate C of user is updatedi（t）, go forward side by side one
Step obtains actual schedule weights.With reference to Fig. 4, second acquisition module includes：
First acquisition unit 101, for obtaining rate loss amount when power limit is carried out according to the power limit mode
ΔC；
Second acquisition unit 102, the actual instantaneous biography of the user data for obtaining user according to the rate loss amount
Defeated speed C ' (t)；
3rd acquiring unit 103, actual instantaneous transmission speed C ' (t) and institute for the user data according to the user
State the handling capacity T in user's actual time windowi（t）The ratio of the two is obtained as the scheduling weights of each user（That is PF
Weights）
Above-mentioned transmission process module using resource block specifically for transmitting the user data for dispatching the high user of weights.
Fig. 5 is the schematic diagram of another structure of the second acquisition module in yet another embodiment of the invention.Second shown in Fig. 4 obtains
The apparatus structure of module 20 is that by taking PF dispatching criterions as an example, but technical scheme is not limited to a kind of this dispatching criterion,
For example under max carrier to interference dispatching criterion, the apparatus structure of the second acquisition module 20 can be as shown in figure 5, second acquisition module 20
Including：
4th acquiring unit 104, for obtaining signal power when power limit is carried out according to the power limit mode
With interference plus noise power ratio；
5th acquiring unit 105, for obtaining each user's according to the signal power and interference plus noise power ratio
Actual schedule weights.
Continue with and made an explanation by taking PF dispatching criterions as an example.
Above-mentioned first acquisition unit 101, if being defined as carrying out modulus operation specifically for the user data of the user（Ask
Mode designation position is 1）Power limit mode, then obtain according to modulus operate carry out power limit when the user user data
Rate loss amount A；If the user data of the user is defined as carrying out the normalized power limit mode of linear power（Modulus
Flag bit is 0）, then the rate loss that the user data of user when carrying out power limit is normalized according to linear power is obtained
Measure λ；Otherwise, selection is operated to the user data of the user according to modulus or linear power normalizes speed damage when limiting
Vector smaller carries out the power limit mode of power limit as the user data to the user, and obtains corresponding speed
Loss amount Δ C；
In addition, first acquisition unit 101 obtains the user data that user when carrying out power limit is operated according to modulus
Rate loss amount be specially：User according to the signal power of the user and interference plus noise power than determining the user
Data modulation；Obtained according to the modulation system of the user data and the user data of the user is carried out after modulus operation
Signal power and interference plus noise power compare loss amount；Signal power and interference plus noise work(after being operated according to the modulus
Rate obtains the rate loss amount Δ C of the user data of the user than loss amount；
First acquisition unit 101 normalizes the speed of the user data of user when carrying out power limit according to linear power
Rate loss amount is specially：According to the transmission power for the user data for launching the user, and for offsetting scheduled user
Interference transmission power, obtain and the signal power after linear power normalization and interference carried out to the user data of the user
Plus noise power ratio loss amount；Signal power after being normalized according to the linear power is with interference plus noise power than losing
Amount, obtains the rate loss amount Δ C of the user data of the user.
It is The embodiment provides a kind of dispatching method of user data and device, modulus is adaptive accurate with scheduling
Then combine, judged to update scheduling weights according to modulus, and data receiver is indicated to by modulus flag bit so that scheduling
As a result more meet channel status, improve systematic function.
One of ordinary skill in the art will appreciate that：Realizing all or part of step of above-mentioned each method embodiment can lead to
The related hardware of programmed instruction is crossed to complete.Foregoing program can be stored in a computer read/write memory medium.The journey
Sequence upon execution, performs the step of including above-mentioned each method embodiment；And foregoing storage medium includes：ROM, RAM, magnetic disc or
Person's CD etc. is various can be with the medium of store program codes.
Finally it should be noted that：Various embodiments above is merely illustrative of the technical solution of the present invention, rather than its limitations；To the greatest extent
The present invention is described in detail with reference to foregoing embodiments for pipe, it will be understood by those within the art that：Its according to
The technical scheme described in foregoing embodiments can so be modified, or which part or all technical characteristic are entered
Row equivalent substitution；And these modifications or replacement, the essence of appropriate technical solution is departed from various embodiments of the present invention technology
The scope of scheme.
Claims (11)
1. a kind of scheduling user data method, it is characterised in that including：
Scheduling user data device obtains the power limit mode that power limit is carried out to the user data of user；
Scheduling user data device obtains the actual schedule that the user after power limit is carried out according to the power limit mode
Weights；
User data of the scheduling user data device according to the actual schedule weights of the user on resource block to the user
It is transmitted；
The scheduling user data device is obtained to be included to the power limit mode that the user data of user carries out power limit：
Power loss of the user data of the scheduling user data device user under multiple power limitation mode
Amount, selects the minimum power limit mode of power loss amount as the power limit mode of the user data of the user；
Wherein, the multiple power limitation mode includes power limit mode and the normalized power of linear power that modulus is operated
Limitation mode.
2. scheduling user data method according to claim 1, it is characterised in that the scheduling user data device is obtained
The actual schedule weights for carrying out the user after power limit according to the power limit mode include：
The scheduling user data device obtains signal power when power limit is carried out according to the power limit mode and done
Disturb plus noise power ratio；
The scheduling user data device obtains the reality of the user according to the signal power and interference plus noise power ratio
Dispatch weights in border；
The scheduling user data device according to the actual schedule weights of the user on resource block to the user's
User data be transmitted including：
The scheduling user data device transmits the user data of the high user of the scheduling weights using resource block.
3. scheduling user data method according to claim 1, it is characterised in that the scheduling user data device is obtained
The actual schedule weights for carrying out the user after power limit according to the power limit mode include：
The scheduling user data device obtains rate loss amount when power limit is carried out according to the power limit mode；
The scheduling user data device obtains the actual instantaneous biography of the user data of the user according to the rate loss amount
Defeated speed；
The scheduling user data device is worked as according to the actual instantaneous transmission speed of the user data of the user with the user
Handling capacity in preceding time window obtains the ratio of the two as the scheduling weights of each user；
User of the scheduling user data device according to the actual schedule weights of the user on resource block to the user
Data be transmitted including：
The scheduling user data device transmits the user data of the high user of the scheduling weights using resource block.
4. scheduling user data method according to claim 3, it is characterised in that the scheduling user data device is obtained
Rate loss amount when carrying out power limit according to the power limit mode includes：
If the user data of the user is defined as carrying out the power limit side of modulus operation in the scheduling process having determined
Formula, the then scheduling user data device acquisition operates the speed of the user data of user when carrying out power limit according to modulus
Rate loss amount；If the user data of the user is defined as carrying out the normalized power limit mode of linear power, described to use
User data dispatching device obtains the speed damage that the user data of user when carrying out power limit is normalized according to linear power
Vector；Otherwise, the scheduling user data device selection is operated or linear power to the user data of the user according to modulus
The power that speed loss amount smaller carries out power limit as the user data to the user when normalization is limited is limited
Mode processed, and obtain corresponding rate loss amount.
5. scheduling user data method according to claim 4, it is characterised in that the scheduling user data device is obtained
The rate loss amount of the user data of user when carrying out power limit is operated according to modulus to be included：
The scheduling user data device determines the user according to the signal power of the user with interference plus noise power ratio
User data modulation system；
The scheduling user data device obtains to enter the user data of the user according to the modulation system of the user data
Signal power after the operation of row modulus compares loss amount with interference plus noise power；
The scheduling user data device operated according to the modulus after signal power and interference plus noise power than loss amount,
Obtain the rate loss amount of the user data of the user；
And, the scheduling user data device obtains the use that user when carrying out power limit is normalized according to linear power
The rate loss amount of user data is specially：
The scheduling user data device is and same for offsetting according to the transmission power of the user data for launching the user
The transmission power of the interference of scheduled user in time/frequency source block, obtains and carries out linear power to the user data of the user
Signal power after normalization compares loss amount with interference plus noise power；
The scheduling user data device is according to the signal power and interference plus noise power ratio after linear power normalization
Loss amount, obtains the rate loss amount of the user data of the user.
6. scheduling user data method according to claim 4, it is characterised in that also include：The scheduling user data
Device notifies the power limit mode that power limit is carried out to the user data of the user to data receiver.
7. a kind of scheduling user data device, it is characterised in that including：
First acquisition module, the user data for obtaining to user carries out the power limit mode of power limit；
Second acquisition module, the actual schedule of the user after power limit is carried out for obtaining according to the power limit mode
Weights；
Transmission process module, for the actual schedule weights according to each user in user data of the resource block to the user
It is transmitted；
First acquisition module is specifically for comparing power of the user data of the user under multiple power limitation mode
Loss amount, selects the minimum power limit mode of power loss amount as the power limit mode of the user data of the user；
Wherein, the multiple power limitation mode includes power limit mode and the normalized power of linear power that modulus is operated
Limitation mode.
8. scheduling user data device according to claim 7, it is characterised in that second acquisition module includes：
First acquisition unit, for carrying out rate loss amount during power limit according to the power limit mode；
Second acquisition unit, the actual instantaneous transfer speed of the user data for obtaining the user according to the rate loss amount
Rate；
3rd acquiring unit, when actual instantaneous transmission speed and the user for the user data according to the user are current
Between handling capacity in window obtain the ratio of the two as the scheduling weights of each user；
The transmission process module using resource block specifically for transmitting the user data for dispatching the high user of weights.
9. scheduling user data device according to claim 7, it is characterised in that second acquisition module includes：
4th acquiring unit, signal power when power limit is carried out according to the power limit mode for obtaining adds with interference
Noise power ratio；
5th acquiring unit, the actual tune for obtaining the user according to the signal power and interference plus noise power ratio
Spend weights.
10. scheduling user data device according to claim 8, it is characterised in that the first acquisition unit is specifically used
If being defined as carrying out the power limit mode of modulus operation in the user data of the user, obtain and operate progress according to modulus
The rate loss amount of the user data of user during power limit；If the user data of the user is defined as carrying out linear work(
The normalized power limit mode of rate, then obtain the number of users that user when carrying out power limit is normalized according to linear power
According to rate loss amount；Otherwise, selection is operated to the user data of the user according to modulus or linear power normalization is carried out
Speed loss amount smaller carries out the power limit mode of power limit as the user data to the user during limitation, and obtains
Take corresponding rate loss amount.
11. scheduling user data device according to claim 9, it is characterised in that the first acquisition unit is obtained and pressed
The rate loss amount of the user data of user when carrying out power limit is operated according to modulus to be included：According to the signal of the user
User data modulation system of the power with interference plus noise power than determining the user；According to the modulation methods of the user data
Formula obtains the signal power after the user data progress modulus operation to the user and compares loss amount with interference plus noise power；Root
Signal power after being operated according to the modulus obtains the speed of the user data of the user with interference plus noise power than loss amount
Rate loss amount；
The first acquisition unit normalizes the speed of the user data of user when carrying out power limit according to linear power
Loss amount is specially：According to the transmission power for the user data for launching the user, and for offsetting scheduled user's
The transmission power of interference, obtains and carries out the signal power after linear power normalization to the user data of the user and disturb to add
Noise power ratio loss amount；According to the signal power after linear power normalization with interference plus noise power than loss amount,
Obtain the rate loss amount of the user data of the user.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210222931.7A CN103517394B (en) | 2012-06-30 | 2012-06-30 | Scheduling user data method and apparatus |
| EP13810757.8A EP2852239B1 (en) | 2012-06-30 | 2013-05-17 | User data scheduling method and device |
| PCT/CN2013/075814 WO2014000531A1 (en) | 2012-06-30 | 2013-05-17 | User data scheduling method and device |
| US14/579,449 US9629175B2 (en) | 2012-06-30 | 2014-12-22 | Method and apparatus for scheduling user data |
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| US6987738B2 (en) * | 2001-01-12 | 2006-01-17 | Motorola, Inc. | Method for packet scheduling and radio resource allocation in a wireless communication system |
| US7536626B2 (en) * | 2004-06-18 | 2009-05-19 | Qualcomm Incorporated | Power control using erasure techniques |
| CN1741412B (en) * | 2004-08-27 | 2011-06-08 | 清华大学 | Sub-channel distributing method in radio network |
| KR20060096365A (en) * | 2005-03-04 | 2006-09-11 | 삼성전자주식회사 | User scheduling method for multiuser mimo communication system |
| CN1870459A (en) | 2005-05-24 | 2006-11-29 | 松下电器产业株式会社 | Multi-user multi-input multi-output cross-layer communication method of joint dirty paper code and dispatching |
| US7839830B2 (en) * | 2006-04-11 | 2010-11-23 | Nec Laboratories America, Inc. | Uplink scheduler for cellular packet access |
| EP1906548B1 (en) * | 2006-09-27 | 2014-08-13 | Samsung Electronics Co., Ltd. | Method and apparatus for scheduling data considering its power in a communication system |
| US8626104B2 (en) * | 2006-09-28 | 2014-01-07 | Apple Inc. | Generalized codebook design method for limited feedback systems |
| KR100948797B1 (en) * | 2006-12-11 | 2010-03-24 | 삼성전자주식회사 | Apparatus and method for scheduling in mobile communication system |
| JP5206945B2 (en) * | 2007-12-17 | 2013-06-12 | 日本電気株式会社 | Multi-user MIMO scheduling method |
| US8254328B2 (en) * | 2007-12-17 | 2012-08-28 | Nec Corporation | Scheduling method for multi-user MIMO in which resource blocks are allocated based on priorities |
| KR101432637B1 (en) * | 2008-03-24 | 2014-08-21 | 삼성전자주식회사 | Device and method of controlling mulitple input multiple output communication system |
| US8705484B2 (en) * | 2008-08-15 | 2014-04-22 | Ntt Docomo, Inc. | Method for varying transmit power patterns in a multi-cell environment |
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| JP5073687B2 (en) * | 2009-01-07 | 2012-11-14 | 株式会社エヌ・ティ・ティ・ドコモ | Base station apparatus and information transmission method |
| CN101998655B (en) * | 2009-08-31 | 2013-05-08 | 鼎桥通信技术有限公司 | Multicarrier high-speed uplink packet access scheduling method |
| CN102316596B (en) * | 2010-06-30 | 2014-04-09 | 中兴通讯股份有限公司 | Control station and method for scheduling resource block |
| KR20120025103A (en) * | 2010-09-07 | 2012-03-15 | 삼성전자주식회사 | Method and apparatus for scheduling in wireless communication system using dual cell |
| CN102420645B (en) * | 2010-09-28 | 2015-12-16 | 中兴通讯股份有限公司 | A kind of grouping scheduling method of multiuser mimo system and device |
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| EP2852239A4 (en) | 2015-05-20 |
| US20150110053A1 (en) | 2015-04-23 |
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| EP2852239B1 (en) | 2018-10-10 |
| CN103517394A (en) | 2014-01-15 |
| EP2852239A1 (en) | 2015-03-25 |
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